drivers/baseband/la12xx/bbdev_la12xx.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright 2020-2021 NXP
   3  */
   4
   5 #include <string.h>
   6
   7 #include <rte_common.h>
   8 #include <rte_bus_vdev.h>
   9 #include <rte_malloc.h>
  10 #include <rte_ring.h>
  11 #include <rte_kvargs.h>
  12
  13 #include <rte_bbdev.h>
  14 #include <rte_bbdev_pmd.h>
  15
  16 #include <bbdev_la12xx_pmd_logs.h>
  17
  18 #define DRIVER_NAME baseband_la12xx
  19
  20 /* private data structure */
  21 struct bbdev_la12xx_private {
  22         unsigned int max_nb_queues;  /**< Max number of queues */
  23 };
  24 /* Create device */
  25 static int
  26 la12xx_bbdev_create(struct rte_vdev_device *vdev)
  27 {
  28         struct rte_bbdev *bbdev;
  29         const char *name = rte_vdev_device_name(vdev);
  30
  31         PMD_INIT_FUNC_TRACE();
  32
  33         bbdev = rte_bbdev_allocate(name);
  34         if (bbdev == NULL)
  35                 return -ENODEV;
  36
  37         bbdev->data->dev_private = rte_zmalloc(name,
  38                         sizeof(struct bbdev_la12xx_private),
  39                         RTE_CACHE_LINE_SIZE);
  40         if (bbdev->data->dev_private == NULL) {
  41                 rte_bbdev_release(bbdev);
  42                 return -ENOMEM;
  43         }
  44
  45         bbdev->dev_ops = NULL;
  46         bbdev->device = &vdev->device;
  47         bbdev->data->socket_id = 0;
  48         bbdev->intr_handle = NULL;
  49
  50         /* register rx/tx burst functions for data path */
  51         bbdev->dequeue_enc_ops = NULL;
  52         bbdev->dequeue_dec_ops = NULL;
  53         bbdev->enqueue_enc_ops = NULL;
  54         bbdev->enqueue_dec_ops = NULL;
  55
  56         return 0;
  57 }
  58
  59 /* Initialise device */
  60 static int
  61 la12xx_bbdev_probe(struct rte_vdev_device *vdev)
  62 {
  63         const char *name;
  64
  65         PMD_INIT_FUNC_TRACE();
  66
  67         if (vdev == NULL)
  68                 return -EINVAL;
  69
  70         name = rte_vdev_device_name(vdev);
  71         if (name == NULL)
  72                 return -EINVAL;
  73
  74         return la12xx_bbdev_create(vdev);
  75 }
  76
  77 /* Uninitialise device */
  78 static int
  79 la12xx_bbdev_remove(struct rte_vdev_device *vdev)
  80 {
  81         struct rte_bbdev *bbdev;
  82         const char *name;
  83
  84         PMD_INIT_FUNC_TRACE();
  85
  86         if (vdev == NULL)
  87                 return -EINVAL;
  88
  89         name = rte_vdev_device_name(vdev);
  90         if (name == NULL)
  91                 return -EINVAL;
  92
  93         bbdev = rte_bbdev_get_named_dev(name);
  94         if (bbdev == NULL)
  95                 return -EINVAL;
  96
  97         rte_free(bbdev->data->dev_private);
  98
  99         return rte_bbdev_release(bbdev);
 100 }
 101
 102 static struct rte_vdev_driver bbdev_la12xx_pmd_drv = {
 103         .probe = la12xx_bbdev_probe,
 104         .remove = la12xx_bbdev_remove
 105 };
 106
 107 RTE_PMD_REGISTER_VDEV(DRIVER_NAME, bbdev_la12xx_pmd_drv);
 108 RTE_LOG_REGISTER_DEFAULT(bbdev_la12xx_logtype, NOTICE);